Repair cost guidesAUSTRALIAN REPAIR COST GUIDE

Car Thermostat Replacement Cost in Australia

A thermostat can stick open or closed, causing slow warm-up or overheating. Diagnosis should distinguish it from radiator, water-pump, fan and sensor faults.

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Pricing data checked 28 August 2026. Guide reviewed 1 September 2026. How estimates work.

Vehicle-profile example

Thermostat Replacement

2018 Toyota Corolla · Australia

$213–$966

Parts$54–$270

Labour1.4490000000000003–3.8640000000000003 hours

Example only. Choose your own vehicle profile for an adjusted range.

Signs to investigate

Engine runs too cold or takes a long time to warm
Overheating with poor coolant circulation
Temperature gauge moves unpredictably
A thermostat-related diagnostic code

What changes the price?

Thermostat housing design
Engine access and component removal
Coolant specification and quantity
Bleeding procedure and related seals or hoses

Questions to ask the workshop

How was the thermostat fault confirmed?
Is the thermostat supplied with the housing?
Are coolant and system bleeding included?
Has the cooling system been checked for other faults?

COMMON QUESTIONS

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How much does thermostat replacement cost in Australia?

For the 2018 Toyota Corolla example shown, ShiftyMechanics estimates $213–$966. Exact parts and the workshop's actual labour rate can change the result.

Does the estimate include parts and labour?

Yes. ShiftyMechanics shows the parts range, labour hours, Australian independent-workshop hourly-rate range and estimated total separately.

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